Motobi Sei: history, specs, pictures
| Motobi Sei | |
| Manufacturer | |
|---|---|
| Production | 1976 |
| Engine | in-line six, four-stroke |
| Bore / Stroke | 56.0mm x 50.0mm |
| Top Speed | 137 mph (220 km/h) |
| Horsepower | 69.46 HP (51.8 KW) @ 8500RPM |
| Torque | 56.8 ft/lbs (77.0 Nm) @ 7100RPM |
| Fuel System | carburetor. 3x dellorto 24mm |
| Transmission | Gear box: 5-speed Final Drive: chain |
| Suspension | Front: marcossochi Rear: twin shock |
| Brakes | Front: double disc. brembo Rear: single disc. brembo |
| Front Tire | 100/90-18 |
| Rear Tire | 120/90-18 |
| Wheelbase | 57.09 inches (1450 mm) |
| Length | 83.46 inches (2120 mm) |
| Width | 29.92 inches (760 mm) |
| Height | 42.52 inches (1080 mm) |
| Weight | |
| Manuals | Service Manual |
The Motobi Sei was a in-line six, four-stroke standard produced by Motobi in 1976. It could reach a top speed of 137 mph (220 km/h). Max torque was 56.8 ft/lbs (77.0 Nm) @ 7100 RPM. Claimed horsepower was 69.46 HP (51.8 KW) @ 8500 RPM.
Engine[edit | edit source]
The engine was a air cooled in-line six, four-stroke. A 56.0mm bore x 50.0mm stroke result in a displacement of just 747.0 cubic centimeters. Fuel was supplied via a overhead cams (ohc).
Drive[edit | edit source]
The bike has a 5-speed transmission. Power was moderated via the wet plate.
Chassis[edit | edit source]
It came with a 100/90-18 front tire and a 120/90-18 rear tire. Stopping was achieved via double disc. brembo in the front and a single disc. brembo in the rear. The front suspension was a marcossochi while the rear was equipped with a twin shock. The wheelbase was 57.09 inches (1450 mm) long.